10051results about How to "Tightly bound" patented technology

Intermetal dielectric (IMD) and interlevel dielectric (ILD) that have dielectric constants (K) ranging from 2.0 to 2.6 are prepared from plasma or photon assisted CVD (PACVD) or transport polymerization (TP). The low K dielectric (LKD) materials are prepared from PACVD or TP of some selected siloxanes and F-containing aromatic compounds. The thin films combine barrier and adhesion layer functions with low dielectric constant functions, thus eliminating the necessity for separate adhesion and barrier layers, and layers of low dielectric constant. The LKD materials disclosed in this invention are particularly useful for <0.18 .mu.m ICs, or when copper is used as conductor in future ICs.

Compositions and methods for modulating the activity of RNA and DNA are disclosed. In accordance with preferred embodiments, antisense compositions are prepared comprising targeting and reactive portions. Reactive portions which act, alternatively, through phosphorodiester bond cleavage, through backbone sugar bond cleavage or through base modification are preferrably employed. Groups which improve the pharmacodynamic and pharmacokinetic properties of the oligonucleotides are also useful in accordance with certain embodiments of this invention. Delivery of the reactive or non-reactive functionalities into the minor groove formed by the hybridization of the composition with the target RNA is also preferrably accomplished. Therapeutics, diagnostics and research methods and also disclosed. Synthetic nucleosides and nucleoside fragments are also provided useful for elaboration of oligonucleotides and oligonucleotide analogs for such purposes.

This invention relates to the application of hydroxyapatite chromatography to the purification of at least one antibody from a preparation containing high molecular weight aggregates. Further, this invention relates to an integration of ceramic hydroxyapatite chromatography into a combination chromatographic protocol for the removal of high molecular weight aggregates from an antibody preparation.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation/copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst is characterized by a simple and practical preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to an application of the supported non-metallocene catalyst in olefin homopolymerization/copolymerization. The application is characterized in that compared with the prior art, the dosage of the catalyst is lower.

The invention relates to a load type non-metallocene catalyst and a preparation method thereof. The load type non-metallocene catalyst has the characteristics of simple preparation method, flexible and adjustable polymerization activity and the like, and synergistic reaction which is beneficial to activity development is formed between non-metallocene complexes and chemical conditioning agents inthe catalyst. The invention also relates to the application of the load type non-metallocene catalyst in olefin homopolymerization/copolymerization. Compared with the prior art, the application has the characteristic of less cocatalyst amount.

The invention discloses an interactive automated testing system and a method of the interactive automated testing system. The interactive automated testing system comprises a test master control end which is respectively connected with an automatic use-case editor and a plurality of agent actuating ends. The automatic use-case editor is connected with an interface record module through a recorded control library file. The automatic use-case editor and the test master control end are provided with a similar natural language manager. The interactive automated testing system and the method of the interactive automated testing system firstly solves the problem how to achieve generation and usage of temporary storage data variable, and how the interactive automated testing system achieves unified management of life cycles of the data variable when a traditional mode that a programming script drives an automated testing is abandoned so as to achieve high-speed generation of an automated testing use-case, and secondly solves the problems that how to automatically and accurately marking positions of occurrences of issues on a picture after the automated testing carries out an automatic screenshot, and how to accurately and detailedly scripting the problems, and meanwhile a issue script is printed on the picture and is used as issue remark of the picture.

The invention relates to a supported non-metallocene catalyst and a preparation method thereof. The supported non-metallocene catalyst has the characteristics of simple and feasible preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to application of the supported non-metallocene catalyst in homopolymerization/ copolymerization of olefins.Compared with the prior art, the consumption of a cocatalyst is low in the application.

The invention relates to a loaded non-metallocene catalyst and a preparation method and application thereof. The loaded non-metallocene catalyst has the characteristics of simple and practicable preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the loaded non-metallocene catalyst to the homopolymerisation/copolymerization of olefin. Compared with the prior art, the application has the characteristic of small using amount of a cocatalyst.

A transverse bar assembly for use in constructing rebar mats for reinforcement of concrete paving includes a plurality of chairs and clips each having a lower portion that fixes to a transverse bar in the direction of its length and an upper portion for orthogonally receiving and holding locked in place a longitudinal bar, the chair also having a support extending to a base surface.

The invention discloses a double-layer membranous tissue repair material and a preparation method thereof, wherein, a cell-free membranous biological derivative material is used as a surface layer, and a fibroblast is compounded in the interior of a biological support material to form a substrate, and then the surface layer and the substrate are combined in a chimeric way to form the double-layer membranous tissue repair material; a compact surface layer structure can effectively reduce the loss of water, electrolytes and protein from surface of wound, avoid the invading and the reproduction of bacteria to the impaired surface of wound as well as prevent the infection of the surface of wound, thus being beneficial to epitheliosis and epithelial growth; the substrate can directly repair the surface of wound, promote the ingrowth of cells around the surface of wound and the angiogenesis, induce the differentiation from stem cells to skin cells and quicken wound healing; compared with the existing products, the tissue repair material has the advantages of being capable of promoting the regeneration of skin, improving the elasticity, the flexibility and the mechanical abrasion resistance of skin after the surface of wound is healed, reducing hyperplasia of scar tissues, controlling the contracture, having excellent biocompatibility, increasing the success rate of transplant and improving the quality of healing; the invention has wide material resources and simple production method; the double-layer membranous tissue repair material prepared is applicable to the clinical treatment of skin defect caused by inflammation, ulcer, thermal burns, iatrogenicity and the like.

The invention relates to a supported non-metallocene catalyst. The supported non-metallocene catalyst is obtained by a non-metallocene ligand and a transition metal compound which directly react on a carrier through an in-situ supporting method. The preparation method for the supported non-metallocene catalyst has simple and feasible process, and the supporting capacity and the polymerization activity of the catalyst have wide adjustable range. When the supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization/copolymerization of olefins, high polymerization activities of the olefins can be obtained only by using small amount of the catalyst promoter.

The present invention presents a comprehensive advanced geological detection system carried on a tunnel boring machine. The comprehensive advanced geological detection system includes a multifunctional combination main frame, an induced polarization detection device, a seismic wave detection device, an integrated junction device, a borehole ground penetrating radar detection device and a comprehensive interpretation and decision system; the multifunctional combination main frame includes a time division multiplexing control module, an excitation source control module and a parallel data acquisition module; the excitation source control module outputs trigger signals to the three detection devices respectively, and the three detection devices respectively output measurement data and feedback signals to the time division multiplexing control module through the parallel data acquisition module; and the comprehensive interpretation and decision system supports geological interpretations and decisions through the inversion/migration imaging joint inversion of three detection methods.

The invention discloses an optical fiber extrinsic Fabry-Perot interference ultrasonic sensing and detection device, comprising a 1550nm light source, a 1550nm optical circulator, an optical fiber Fabry-Perot ultrasonic sensor, a photoelectric transition module, a signal amplification module, an oscillograph, a piezoelectric transducer and a signal generator. The basic structure of the optical fiber Fabry-Perot ultrasonic sensor is composed of a single mode optical fiber, a quartz vibrating membrane, an outer ceramic bushing, an inner ceramic bushing and a metal base. The light emitted by the 1550nm light source reaches the optical fiber Fabry-Perot ultrasonic sensor through the optical circulator, when ultrasonic wave acts on the ultrasonic sensor, as the light reflected by the optical fiber Fabry-Perot ultrasonic sensor is modulated by the ultrasonic signal, the reflected light reaches the photoelectric conversion module by the circulator and then is converted into an electric signal, and the ultrasonic signal can be observed by the oscillograph after amplification. The invention has simple structure, easy manufacture, low cost and high sensitivity, strong practicability, easy encapsulation and is convenient for mass production, and can be applied to related fields of industrial detection, power system safety and the like.

The combined grouting construction process of reinforcing foundation includes the following steps: drilling grouting hole; establishing hole top grouting apparatus; high pressure rotary spraying clear water to expand hole; high pressure rotary spraying mortar and static pressure grouting. The present invention combines static pressure grouting technology and high pressure rotary spraying grouting technology with different advantages, so as to reach maximum application range, optimized reinforcing effect, and successive and safe reinforcement.

The invention relates to a supported non-metallocene catalyst. The supported non-metallocene catalyst is obtained by a non-metallocene ligand and a transition metal compound which directly react on a carrier through an in-situ supporting method. The preparation method for the supported non-metallocene catalyst has simple and feasible process, and has wide adjustable range of the supporting capacity and the polymerization activity of the catalyst. When the supported non-metallocene catalyst is combined with a catalyst promoter to catalyze the homopolymerization/copolymerization of olefins, high polymerization activities of the olefins can be obtained only by the less using amount of the catalyst promoter.

The invention discloses a preparation method for a composite cathode material of a lithium ion battery by means of spray drying pyrolysis treatment. The preparation method includes the steps: dissolving a first type of binder organic carbon source into solvent of a proper quantity, adding a silicon source, a second type of binder and a dispersing agent, dispersing uniformly, adding graphite, dispersing for a certain time, subjecting uniformly dispersed suspension to spray drying, and using the first type of binder organic carbon source to bond the silicon source, the graphite and the second type of binder particles into spherical or spherical-like forms to obtain a composite precursor; and transferring the precursor into a shielding atmosphere for sintering, heating the second type of binder to a certain temperature to be melted into a liquid crystal state, bonding the particle silicon source and the graphite into cores, subjecting the organic carbon source to pyrolysis at the high temperature to form a coating, and furnace cooling to obtain the carbon-silicon composite cathode material of the lithium ion battery. The preparation method is simple, easy in implementation and high in practicality. The carbon-silicon composite prepared by the method has the advantages of high reversible capacity, designable capacity, high circulating performance and high-current discharging performance, high tap density and the like.

The present disclosure provides a lithium-ion battery positive electrode material and a preparation method thereof. In the lithium-ion battery positive electrode material, a secondary particle comprises lithium-containing multi-element transition metal oxide primary particles and a second phase material, a second phase material forms a second phase material layer distributed on a surface of the primary particle and forms a diffusion layer together with the lithium-containing multi-element transition metal oxide by means of atoms mutual diffusion to make the second phase material layer combined with the primary particle during formation of the secondary particle from the primary particles, thereby effectively suppressing chalking of the secondary particle along boundary among the primary particles, and effectively controlling size of the primary particles and the secondary particles, and improving specific capacity, cycling performance and safety performance of a lithium-ion battery to which the lithium-ion battery positive electrode material is applied.