31results about How to "Broad requirements" patented technology

A process and methods of digital enhancement of motion pictures and other moving image sequences for the purpose of being exhibited in an alternative display format including a large format cinema are disclosed. The invention efficiently enhances image resolution and quality through a temporal filtering process and achieves high performance using automated or interactive statistical quality evaluation methods. A system specially designed for efficient temporal computing with a parallel and distributed computing configuration equipped with a variety of optimization schemes is also disclosed. The performance of the process and the system is optimized through an intelligent controller and is scalable to support any throughput requirements demanded for concurrent motion picture releases in the original format as well as in any alternative format.

The invention belongs to a fiber-level high purity silicon tetrachloride continuous azeotropy lightness removing rectification method. A lightness removing tower and a heaviness removing tower are adopted; light components and azeotropic mixtures are removed from the raw material, the material at the bottom of the lightness removing tower enters the heaviness removing tower to lead the heaviness to be removed, partial material at the bottom of the heaviness removing tower returns to the lightness removing tower as incoming stock and the fiber-level silicon tetrachloride product is obtained at the top of the heaviness removing tower. The lightness removing tower is divided into an upper lightness removing tower and a lower lightness removing tower. The upper lightness removing tower adopts a pressurizing tower with the pressure being 200-250 KPa, the total theoretical stage being 80-120, and the rate of top reflux to the incoming material being 5-12; the lower lightness removing tower adopts a pressurizing tower with the pressure being 200-250KPa, and the total theoretical stage being 80-120; and the heaviness removing tower adopts a pressurizing tower with the pressure being 200-300KPa, the rate of the top reflux to the incoming material being 8-20 and the theoretical stage being 60-100. The system adopts continuous operation, is suitable for large-scale silicon tetrachloride purification and reduces energy consumption. The method has wide requirements on the raw materials of the silicon tetrachloride and is applicable to the purification of silicon tetrachloride with the concentration range of 50-98 percent in raw materials.

The invention relates to polycarbonate polyurethane and a green preparation method thereof. The polycarbonate polyurethane comprises polyurethane structural units and aliphatic polycarbonate structural units which are irregularly distributed. The polycarbonate polyurethane is successfully prepared by a nonisocyanate method, so that isocyanate and solvents are not used, and the development requirements of green chemical industry are met. In addition, the green preparation method of the polycarbonate polyurethane is relatively mild in reaction condition and low in requirement on devices; by selecting raw materials with different structures, the polycarbonate polyurethane having different linear structures and comprising two irregularly distributed structural units can be prepared, so that the structures are diverse and controllable; the prepared polycarbonate polyurethane is free of residue of isocyanate monomers, so that the application of polycarbonate polyurethane to the fields of foods and medicines is broadened.

The invention discloses a movable high-accuracy silk material ultrasonic detection system, which consists of a substrate platform (1), a clamping mechanism (2) and a detection mechanism (3), wherein the clamping mechanism (2) and the detection mechanism (3) are arranged on the substrate platform (1). The system is characterized in that: the detection mechanism (3) consists of a detection unit (31) and an axial moving unit (32); and the detection unit (31) is flexibly connected with the axial moving unit (32), has a degree of freedom in the radial direction of a silk material, and axially rigidly moves along with the radial movement of the silk material when the silk material moves radially. The movable high-accuracy silk material ultrasonic detection system changes the structural form of a conventional detection apparatus, effectively reduces a missed alarm rate and a false alarm rate, and realizes the digital operations of clamping, rotation and scanning and defect signal acquisition and processing by using private control detection software, thereby realizing the high-flexibility and high-efficiency automatic detection, recording and evaluation of internal defects, surface defects and near surface defects of the silk material.

A film guide for a movie camera having an image window which is arranged in a recording beam path of the movie camera, a gripper platform which is supported on the image window, between whose mutually facing film planes a film channel is formed through which a movie film is moved by a film transport mechanism, and a spacing window which is connected to the gripper platform. The spacing window is supported on the image window in such a manner that the film channel narrows to form a film gap between the mutually facing film planes of the image window and the spacing window.

A system (100) for liquefying a gas comprises a liquid piston gas multistage compressor (2). It can be arranged on-board a liquefied gas carrier for recycling boil-off gas. Such system may be easily adapted or controlled for matching wide requirement ranges for variations of the liquefaction capacity. In addition, at least part of the liquid piston gas multistage compressor can be shared between the gas liquefying system and an extra gas-fed device. Such extra gas-fed device may be in particular a gas-fuelled or hybrid fuel propulsion engine of the vessel.

The invention discloses a rotary hearth furnace brown coal drying method and a rotary hearth furnace brown coal drying device which can dry the brown coal at high efficiency and low consumption. The method comprises the following step of: taking overheated steam and high temperature flue gas as a brown coal drying heat source; taking equipment which takes a rotary hearth furnace as a core as a drying device, uniformly distributing the dried brown coal at the furnace bottom of the rotary hearth furnace through a reflection plate distributor; turning the brown coal layer through a turning mechanism in the process of rotating the furnace bottom, obtaining heat of the brown coal through heat exchange, and heating the brown coal. The device comprises a charging system, a feeding hole, a rotary hearth furnace bottom, a furnace wall, a furnace top, a high temperature flue gas and overheated steam inlet, a turning and flue gas injection system, an exhaust gas outlet, a furnace bottom driving system, a furnace bottom supporting roller, a furnace bottom centering roller, a discharging hole and a discharging system, wherein the turning and flue gas injection system comprises a fixing beam, an adjusting mechanism, a plough-shaped turning plate and a high temperature flue gas nozzle. The brown coal with wide particle size range can be directly dried, and large-scale, rapid and low-energy-consumption drying production of the brown coal is realized.

The invention discloses a new method for recycling a polyethylene product. The new method comprises the following operation steps: crushing polyethylene, and then placing polyethylene into a water pool, wherein a water friction extrusion flushing machine is arranged in the water pool; driving a material to enter into a material cleaning pool by using rolling motors, and further flushing and cleaning a fragment, wherein one rolling motor is arranged in the material cleaning pool at an interval of 3 meters; spin-drying the cleaned polyethylene fragment, or directly drying in the sun on a sunny day; granulating the dried polyethylene fragment by using a special extruder, setting the temperature of a feed opening to be lower than 170-190 DEG C, medium extruder temperature to be 210-230 DEG C and mould orifice temperature to be 210 DEG C, and filtering by using a 80-mesh filter screen; dicing in cold water, then spreading, standing for 30-50 minutes, and then bagging and sealing. A polyethylene granule produced by adopting the new method disclosed by the invention is low in impurity content and proper in process parameter and can be granulated again without the addition of new materials, such as an antioxidant, a compatilizer and an elastomer.

The invention discloses a space launch system and method based on electromagnetic pushing launch. Electric energy is converted into an electromagnetic force; through the electromagnetic force, a rocket is pushed to be accelerated to a certain speed along an electromagnetic launching track to realize the launching of the rocket. According to the space launch system and method based on electromagnetic pushing launch, space launch vehicles such as the rocket are accelerated to several Mach numbers within a certain distance through the electromagnetic force; and therefore, a primary engine of an existing traditional rocket can be replaced, and the rocket can be ignited after being launched to the high attitude; the space launch system and method based on electromagnetic pushing launch has theoutstanding advantages of short preparation time, high launching frequency, low launching and maintenance cost, flexible and convenient launching mode and the like; and problems that traditional rocket launching cannot satisfy high frequency continuous launching, the rocket launching cost is high, the launching flexibility is not enough and so on are solved.

A laminar flow fermentation device is characterized by comprising a fermentation tank, an in-tank stirring mechanism, a heat recovery and air exchange device, a feeding mechanism, a discharging mechanism, a heating water pipe and a cooling water pipe, and the heating water pipe and the cooling water pipe are respectively coiled in the fermentation tank which is divided into three equal sections, namely an aerobic fermentation section, a facultative fermentation section and an anaerobic fermentation section. The in-tank stirring mechanism comprises a plurality of material homogenizing stirringcages and a plurality of turning stirring cages and a heat recovery air interchanger comprises a heat recovery air interchanger, an exhaust pipe and an air inlet pipe and a feeding mechanism comprisesa feeding funnel, a vertical conveying pipe and a transverse conveying pipe, and the discharging mechanism comprises a plurality of laminar flow discharging stirring cages and an external conveying pipe. The fermentation property and the sufficient fermentation environment meet the necessary conditions for completing complete fermentation, materials in the bin move at the same time from top to bottom, the top of the bin is filled with the same amount of materials as discharged materials, and the dynamic full-bin state in the bin is guaranteed all the time.

The invention discloses a multifunctional electric wheelchair. The multifunctional electric wheelchair comprises a frame; first supports are hinged to the two ends of one edge of the frame; a backup plate is arranged between the two first supports; one ends of at least two first movable rods are hinged to the opposite surface of the back surface of the backup plate; the other ends of the first movable rods are further hinged to one end of a second movable rod; the other end of the second movable rod is in shaft connection with the same rotating shaft; the rotating shaft is connected with the frame; the rotating shaft can rotate on the frame; the rotating shaft is connected with a third movable rod; the third movable rod is further hinged to the output end of a first electric push rod; the mounting end of the first electric push rod is arranged on a first supporting plate; the first supporting plate is fixed in an inner cavity of the frame; the first support is further hinged to a first handrail; the first handrail is further hinged to a second handrail; the second handrail is hinged to one end of a leg supporting plate; the side edge of the leg supporting plate is hinged to the frame through a second electric push rod; and one end of the leg supporting plate is further hinged to the frame. According to the invention, the sitting posture and the lying state can be adjusted; and operation is simple and easy.

The invention discloses a lifting type nursing wheelchair. The lifting type nursing wheelchair comprises a square frame and first wheels arranged on two sides of a bottom surface of the square frame, second wheels are further arranged on the two sides of the bottom surface of the square frame, the first wheels are arranged at a rear end of a pushing direction of the lifting type nursing wheelchair, the second wheels are arranged at a front end of the pushing direction of the lifting type nursing wheelchair, a first supporting plate is arranged in an inner cavity of the square frame and parallel to a bottom surface of the square frame, and one end of a first telescopic mechanism is hinged to one surface of the first supporting plate; a supporting seat is hinged to the other end of the first telescopic mechanism and the first telescopic mechanism is used for pushing or lifting the supporting seat to make contact with or be lifted away from the ground; when contraction of the first telescopic mechanism is completed, the first wheels and the second wheels make contact with the ground; and when expansion of the first telescopic mechanism is completed, the first wheels and the second wheels do not make contact with the ground and the supporting seat makes contact with the ground. The convenience of the wheelchair user is improved.

A reel for use with flaccid material, such as cables, conduits or the like, includes flanges that are connected together by an adjustable hub. The hub is formed of a plurality of crossbeams that are releasably connected to the flanges whereby the reel can be disassembled for shipping and/or storage and re-assembled in a wide variety of configurations to have a variety of hub dimensions and a variety of compartments.

The present invention provides a preparation method of 2, 3, 4, 6-tetra-O-trimethylsilyl-D-glucolactone. The method comprises the following steps: dropwise adding trimethylchlorosilane into a system of tetrahydrofuran and N-methylmorpholine, adding glucolactone in batches after dropwise adding of the trimethylchlorosilane, and then adding 4-dimethyl pyridine for reaction so as to obtain the 2, 3,4, 6-tetra-O-trimethylsilyl-D-glucolactone. Compared with the prior art, the preparation method disclosed by the invention has the advantages that the requirements on the feeding temperature and the feeding time during reaction are wider, the quality controllable range is widened, the process repeatability is good, the requirement on the cooling of production equipment is reduced, and the preparation method has great advantages in the aspects of product purity and impurity compound IV control.

A design method of a gasification process comprises the following steps: determining raw material characteristics and design requirements, and the design requirements being design target value ranges; according to the raw material characteristics and the design requirements, giving an assumed value of a design variable, and calculating by utilizing the assumed value and an empirical formula to obtain an initial value of the design variable; determining a design variable optimization range of reverse design according to the obtained design variable initial value; sorting the individuals in the obtained initial population through a non-dominated fuzzy sorting method; clustering all non-dominated individuals by adopting a pedigree clustering method with a fuzzy target weight coefficient, and finally, sorting different classes by utilizing a non-dominated fuzzy sorting method, so that a design variable and a design target interval which most meet design requirements are obtained. According to the reverse design, the requirement for a design target is wider, design variables are more comprehensive, the design process has clearer directivity, the design result better meets the design requirement, the workload is greatly reduced, and a designer is not required to have rich experience.