2835 results about "Block structure" patented technology

This invention pertains to fiber termination combination which includes an optical fiber having a fiber core for transmitting a highly energetic optical signal that can damage the fiber and a structured region around the core for directing the optical signal into the core, the structured region being characterized by multiple channels of smaller internal diameter than the core defined by thin walls disposed around said core; a ferrule, with an opening therein for locating said fiber, at the end of said fiber enveloping said fiber extremity which cooperates with said blocking structure to block the optical signal from impinging on said microstructured region of said fiber; and a blocking structure disposed over the end of said fiber with an opening mating with said fiber core, said blocking structure blocking the optical signal from impinging on said microstructured region of said fiber.

A kit for forming a hollow block assembly to be used to construct a wall, the kit consisting of two face panels and a plurality of fasteners, each face panel comprising a plurality of spaced apart flanges extending perpendicularly from and attached to each panel so that a hollow block structure is assembled when the flanges of the face panels are connected together, directly or indirectly, by the fasteners.

The invention provides a method for positioning and clamping welding receiver lathing installation edges and a device. In the method, according to the principle of the same basis, a large and a small installation edge positioning and clamping structures are designed into a whole; expansion of the installation edge on a large-diameter end is realized by adopting a partially rotatable structure; assembly, expansion and co-axis of the large and small installation edges are realized by applying the condition that the same basis is used for a whole clamp; in the whole clamp, the clamp expansion part of a conventional structure is designed into an expansion block structure capable of rotating, locking and releasing; the expansion block structure and a positioning block are matched for realizing positioning and expansion of the installation edges of a part on the large and the small ends; machining requirements of the installation edges are satisfied; the problems of assembly errors and low efficiency of positioning, clamping and aligning processes due to use of a traditional splitting clamp in thin wall welding receiver lathing installation edges are solved; part assembly precision and processing efficiency are enhanced; and a production period is shortened.

An n-cap layer is formed on a top surface of p-type clad layers, the p-type clad layer is a top layer of a stacked structure having a pn-junction for emitting carriers into light-emitting region of a GaN based light-emitting device, thus increasing the activation ratio of acceptor impurities in the p-type clad layers. The n-cap layer is used also as a current blocking layer, thereby constructing a current-blocked structure. The n-cap layer should preferably be made of InuAlvGa1-u-vN (0<u, v<1) deposited as thick as 1.0 micron or more. The present invention will easily provide a high luminous efficiency GaN based semiconductor light-emitting device without using any complicated processes such as electron-beam irradiation or thermal annealing.

The invention provides a resin for a biodegradable anti-fouling paint. The resin for the biodegradable anti-fouling paint is a polymer containing a multi-block structure, characterized in that: the resin is prepared by polymerizing by polylactic acid oligomer, flexible segments, polyisocyanates under the effect of catalysts, wherein, the polylactic acid oligomer is prepared by carrying out reflux reaction on lactic acid having a monomer content of 80-85 % and aromatic solvents under negative pressure or normal pressure until no water generates; the flexible segments comprises polyols or / and polyester polyols; and the amount of the flexible segments accounts for 5-30 % of the weight percentage of the lactic acid raw material; and the amount of polyisocyanates accounts for 10-30 % of the weight percentage of the lactic acid raw material. The invention further provides a biodegradable anti-fouling paint composition containing the resin as a matrix resin. The anti-fouling paint contains composite organic antifouling agent and contains no or little cuprous oxide, and has the advantages of low toxicity, environmental protection, and good anti-fouling effect.

The invention discloses a biquaternary ammonium salt-containing diamine or diol monomer with the following structural general formula, and also discloses a preparation method of the monomer, water-based non-toxic antibacterial polyurethane emulsion prepared by the monomer, and a preparation method of the emulsion. The biquaternary ammonium salt-containing diamine or diol monomer disclosed by the invention can easily serve as a chain extender with an antibacterial function to be introduced into polyurethane, so the antibacterial effect of the polyurethane is greatly improved; the biquaternary ammonium salt-containing diamine or diol monomer disclosed by the invention also can be introduced quantitatively as required so as to meet different antibacterial requirements; the water-based non-toxic antibacterial polyurethane emulsion disclosed by the invention has a unique multi-block structure and a suspended group with an excellent antibacterial effect, and can form a stable emulsion in water; the structure and the performance of the water-based non-toxic antibacterial polyurethane emulsion are easy to regulate and control; the water-based non-toxic antibacterial polyurethane emulsion has excellent biocompatibility, adhesion resistance, biomembrane formation resistance and antibacterial performance, and can be widely applied to antibacterial treatment in the fields of textile, plastic, food packaging, daily necessities, water treatment, medical treatment and public health and the like; and the preparation process of the water-based non-toxic antibacterial polyurethane emulsion is simple, mature in process, easy to control and convenient to industrialize.

The invention discloses a styrene-butadiene copolymer chemical foaming composition containing polystyrene micro-blocks, a preparation method and an application method thereof. The preparation method takes styrene-butadiene copolymer mixing random structure with block structure as base material, and adds flow modifier or softener to regulate the fluidity of rubber. Rubber compositions manufactured by the method have good fluidity and can be molded directly through injection. Chemical foaming agents added reduces product density and effectively achieves the aim of obtaining lightweight material. Post partial chemical crosslinking can be performed so as to improve the stress cracking resistance and wear resistance of the material. Meanwhile, as the partial physical crosslinking of the styrene-butadiene copolymer allows the material to overcome the defect that all-chemical crosslinked rubber cannot be regenerated, the material can be recycled and regenerated.

Condenser structures and cooling apparatuses are provided which facilitate vapor condensation heat transfer of a coolant employed in cooling an electronic device. The condenser structure includes a thermally conductive condenser block with multiple exposed cavities therein extending from a first main surface towards a second main surface. The condenser block is a monolithic structure, and the first main surface is a coolant vapor condensate formation surface when the condenser structure is operationally facilitating cooling of an electronic device. The exposed cavities extend from the first main surface into the condenser block to increase a condensation surface area of the condenser block, thereby facilitating coolant vapor condensate formation on the condenser block, and thus cooling of the electronic device using a two-phase coolant. The condenser structure also includes coolant-carrying channels for facilitating cooling of the condenser block, and thus vapor condensate formation on the condenser block.

The invention discloses a high-performance carbon fiber pre-oxidation furnace which is specially designed for carrying out heat treatment on a high-performance carbon fiber material at a temperature below 350 DEG C. A furnace body is designed into a building block structure and is convenient to assemble and disassemble. For the design of the furnace, the requirements of a preparation process of the high-performance carbon fiber material are fully considered and understood and the key special requirements of the preparation process of the high-performance carbon fiber material are met to the greatest extent. According to the requirements of the preparation process of the material, a circulating hot air heating mode is adopted for the pre-oxidation furnace; for a circulating air traveling mode, air is blown to two ends of the furnace body from the middle of the furnace body; and a plurality of heat treatment cavities are connected in series and in parallel to form a system with a certain temperature gradient. An anticorrosion stainless steel structure is adopted for an inner hearth totally; a full-fiber superlight material is adopted as a heat insulating material to carry out heat insulation; a PLC (Programmable Logic Controller) temperature control module is used for temperature control and has the characteristics of high temperature control accuracy, high temperature stability and the like; and according to the pre-oxidation furnace, in a pre-oxidation process, the problems of low heat treatment efficiency, inaccurate temperature control and unideal temperature uniformity in the heat treatment cavities are solved, protofilament combustion is prevented, sufficient supplementation of the oxygen content in the hearth is realized and waste gas is reasonably discharged. The integral high-performance carbon fiber pre-oxidation furnace has relatively low energy consumption and is durable.

Methods for manufacturing topsheets for absorbent articles are disclosed. The methods may include: providing a cycling forming belt that includes an air-permeable substrate and an ordered arrangement of airflow blocking structures thereon; directing air flow with entrained fibers and / or filaments to a working location through which the belt cycles; drawing the air flow through airflow permeable regions of the belt as they cycle through the working location, and thereby drawing the fibers / filaments to the belt such that they accumulate thereon to form a batt having an arrangement of built-up regions and attenuated regions corresponding with the arrangement of blocking structures, wherein the structures are arranged in individualized single-topsheet configurations that repeat along the machine direction, each configuration being adapted to form a section of web material for a topsheet and to impart a desired formation thereto including channel portions, hinge portions and / or pattern(s) of discrete low bulk portions.

An improved Flash memory device with a distributed erase block management (EBM) scheme is detailed that enhances operation and helps minimize write fatigue of the floating gate memory cells of the Flash memory device. The Flash memory device of the invention combines the EBM data in a user data erase block by placing it in an EBM data field of the control data section of the erase block sectors. Therefore distributing the EBM data within the Flash memory erase block structure. This allows the Flash memory to update and / or erase the user data and the EBM data in a single operation, to reduce overhead and speed operation. The Flash memory also reduces the process of EBM data structure write fatigue by allowing the EBM data fields to be load leveled by rotating them with the erase blocks they describe.