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35results about How to "Address variability" patented technology

Method of link adaptation in enhanced cellular systems to discriminate between high and low variability

Method to perform link adaptation at the radio interfaces of an enhanced packet data cellular network handling several Modulation and Coding Schemes (MCS) for maximizing data throughput. In a preliminary off-line step the system behaviour, in terms of net throughput of the various available MCSs, is simulated for different C / l conditions. From the simulation two sets of tables are obtained, each table including upgrade and downgrade thresholds expressed in terms of Block Error Rate (BLER). Thresholds correspond to switching points from an MCs to the two available MCSs having the immediate less or more protection. The two sets of tables are referred to higher or lower diversity RF environments and are further specialized for taking into account EGPRS type II hybrid ARQ, namely Incremental Redundancy (IR). During transmission the transmitted blocks are checked for FEC and the results are sent to the network. The network continuously updates BLER using exponential smoothing. In order to achieve the correct time response, in spite of that RLC blocks can be received or not, a reliability filter is provided whose output is used to decide the weight between the new and old measurements to make the BLER filter impulse response exponentially decreasing with time. The IR efficiency is tested for each incoming block and an indicative variable IR status is filtered using the same approach used for BLER. Each actual threshold of BLER to be used in link adaptation is obtained by a linear interpolation between the tabulated threshold without IR and with perfect IR, both weighed with filtered IR status. Filtered BLER is then compared with said interpolated thresholds for testing the incoming of a MCS switching condition. Power control pursues the goal of maintaining constant QoS peak throughput per time slot(Fig 16).
Owner:SIEMENS INFORMATION & COMM NEWTWORKS INC

Preparation method of dry powder ceramic tile and green tile thereof, and finished product

The invention relates to a preparation method of a dry powder ceramic tile and a green tile thereof, and a finished product. The preparation method of the green tile comprises the following steps: A. bottom material distribution; B. facing material distribution in press mold cavity: distributing one or a plurality of dry powders on a green material layer by using a screen provided with a hollow decorating pattern; and C. punch forming. In the method, the step A and step B are in no particular order, the step A-C sequence is a reverse punching mode; and when the step A and step B are in the reverse order, the sequence is a forward punching mode. The invention provides the preparation method of the dry powder ceramic tile and green tile thereof; and the method solves the problem that the decorative pattern is not fine enough and is not controllable or variable in the existing powder full-body tile or unglazed ceramic tile. In addition, according to the semifinished product green tile and the finished product ceramic tile, the decorative effects on the tile surfaces are wear-resistant; and the surface of the ceramic tile can be subjected to slot broaching, trimming or chamfering, and the exposed part of the cut surface has the same pattern, texture and tactile sensation as the surface of the ceramic tile, thereby enhancing the grade of the decorating effect of the ceramic tile and widening the application range of the ceramic tile.
Owner:FOSHAN DONGPENG CERAMIC +3

Double-roller RAP crushing machine and crushing method thereof

The invention provides a double-roller RAP crushing machine. The double-roller RAP crushing machine comprises a machine frame, a crushing machine body, a collection hopper and a belt conveyor. The crushing machine body comprises a crushing machine case, a first crushing device, a second crushing device and a tensioning buffer device, wherein the first crushing device and the second crushing device are provided with a first crushing roller and a second crushing roller correspondingly, the first crushing roller and the second crushing roller each comprise a rotary shaft and a tooth plate, each tooth plate is in an arc shape, a plurality of arc-shaped protruding parts are arranged on the surface of each tooth plate, and a concave cavity is formed between every two adjacent arc-shaped protruding parts. A plurality of scraping tooth devices are arranged on the crushing machine case, and the scraping tooth devices and the tooth plates are arranged in a staggered mode. The tensioning buffer device is pivoted to the second crushing device. According to the crushing machine, through the crushing roller tooth plates which are arranged in a staggered mode and the floating crushing roller structure, RAP with large specifications can be rubbed, squeezed and torn alternately, and the asphalt bonding effect in the RAP is destroyed; and meanwhile, aggregate can enter the concave cavities so as to be prevented from being crushed and broken, and thus the original grade of the RAP is prevented from being destroyed.
Owner:FUJIAN TIETUO MACHINERY

Space reference calibration method and device for optical satellite pointing measurement system

The embodiment of the invention provides a space reference calibration method and device for an optical satellite pointing measurement system. The method comprises steps of resampling an absolute output quantity of an absolute pointing measurement subsystem through a relative output quantity of a relative pointing measurement subsystem to obtain a sampling frequency normalization pointing parameter so as to obtain an internal space reference conversion time sequence parameter of the absolute pointing measurement subsystem; acquiring a space reference conversion time sequence parameter betweenthe absolute pointing measurement subsystem and the relative pointing measurement subsystem according to any space reference absolute pointing parameter sequence parameter and the relative output quantity; and constructing a space-time reference conversion model according to the absolute pointing internal space reference conversion time sequence parameter and the space reference conversion time sequence parameter between the absolute pointing measurement subsystem and the relative pointing measurement subsystem so as to perform space reference calibration of the pointing measurement system. The embodiment of the invention lays a foundation for high-efficiency and high-quality imaging and subsequent on-orbit application of a high-resolution optical satellite.
Owner:BEIHANG UNIV +3

Data cleaning method and device, equipment and storage medium

The invention relates to a data cleaning method and device, equipment and a medium. The method comprises the following steps: acquiring and identifying a data type of data; judging whether the data meets a preset matching condition or not; under the condition that the data meets the preset matching condition, cleaning the data according to the preset matching condition to obtain normalized data; and storing the normalized data according to a preset storage condition. The method has the advantages that under the condition that codes do not need to be changed, full-automatic processing is conducted on the data through the preset matching condition and the preset storage condition, the manual processing workload is reduced, the processing efficiency and the processing precision are improved, data unification is ensured, and follow-up statistics, analysis and other operations can be conveniently conducted; the problems of non-uniformity and non-standardization of different data source fields are solved; the uncertainty and variability of business updating rules are solved; by automatically cleaning, matching and managing different test data and standardizing the test data, the data matching efficiency can be greatly improved, the labor cost can be effectively reduced, and the data quality can be improved.
Owner:上海妙一生物科技有限公司

Anti-corrosion aluminum formwork reinforcing back bar

The invention discloses an anti-corrosion aluminum formwork reinforcing back bar, which comprises single pipes and a connecting piece. The single pipes are extruded aluminum profiles, and the sectionof each single pipe is a closed cavity; grooves I and grooves II are formed in the two side faces of the cavities correspondingly, and reinforcing ribs for dividing each cavity into five chambers arearranged in the cavity; the connecting piece is a hollow aluminum pipe with the rectangular section; and the grooves I in the two single pipes are provided with outward openings, formed in a back-to-back mode and connected into a back bar plate single body structure through the hollow aluminum pipe arranged between the back faces of the two single pipes. According to the anti-corrosion aluminum formwork reinforcing back bar, the problems that rigidity is insufficient, and transformation is prone to occurring are solved while lightweight is ensured, and the hydrostatic pressure of concrete is resisted better; and chromized layers and electrostatic sprayed layers are arranged on the surfaces of the aluminum profile single pipes, abrasion resistance and anti-aging capacity of the back bar areimproved, the surface anti-corrosion capacity of the back bar is further improved greatly, and thus the service life of the aluminum alloy profiles can be effectively prolonged.
Owner:忠旺(辽阳)铝模板制造有限公司

An adjustable photovoltaic mounting frame

The invention relates to the technical field of photovoltaic mounting frames, and discloses an adjustable photovoltaic mounting frame, which includes a front L-shaped cover plate, the left cavity of the front L-shaped cover plate is socketed with the transverse plate of the left front plate, The longitudinal board of the left front board is socketed with the front cavity of the left L-shaped sleeve, the rear cavity of the left L-shaped board is socketed with the longitudinal board of the left rear board, and the horizontal board of the left rear board is connected with the The left cavity of the rear L-shaped sleeve is socketed, the right cavity of the rear L-shaped sleeve is socketed with the horizontal board of the right rear board, and the longitudinal board of the right rear board is connected with the rear space of the right L-shaped board. Cavity socket, the front cavity of the right L-shaped sleeve is socketed with the longitudinal board of the right front board, and the horizontal board of the right front board is socketed with the right cavity of the front L-shaped board, so that they are combined into one area Regulating mechanism. The invention solves the problem that the existing photovoltaic system installation frame does not meet the variability of the photovoltaic system, and only needs to be adjusted, saves materials, and satisfies the variability of the photovoltaic system through adjustment.
Owner:天津勤晟光伏科技有限公司

Electromagnetically controlled friction pendulum shock-reducing device and control method

The invention discloses an electromagnetically controlled friction pendulum vibration reduction and isolation device and control method. The electromagnetically controlled friction pendulum vibrationreduction and isolation device and control method comprises a horizontal vibration isolation unit and a vertical vibration isolation unit; in the horizontal vibration isolation unit, a lower cover plate of a common friction pendulum supporting seat is connected with a lower column, the lower column is connected with a base, the upper cover plate of the friction pendulum is connected with an uppercolumn; and in the vertical vibration isolation unit, an electromagnet is embedded between the upper and lower columns of the upper and lower cover plates connecting the friction pendulum and is connected with the control system at the same time, and coils in the electromagnet are connected with the control system through wires. According to feedback information of a displacement sensor and a pressure sensor on the control system, a computer can automatically control the electromagnet correspondingly, the structure of the electromagnet can be reset after an earthquake action by the electromagnet through attracting or repelling, the pull-out capacity is improved, and overturning and even collapse of a building are weakened, the collision damage of a sliding block to a limiting ring is alsogreatly weakened, and the problems of the variability and residual displacement of friction coefficients in an existing friction pendulum are solved; and seismic energy can be consumed more effectively, and a superstructure is more stable and safer.
Owner:兰州瑟百瑞减震技术开发有限公司

Preparation method of silver ion catalytic western blot optical and electrochemical sensor

The invention provides a preparation method of a silver ion catalytic western blot optical and electrochemical sensor. The method comprises the following steps: firstly, coating a mixed aqueous solution of template protein, a functional monomer, a cross-linking agent and sodium alginate on an amino-introduced bare carbon electrode; the protein molecularly imprinted hydrogel modified electrode is prepared through a free radical polymerization reaction initiated by silver ion catalyzed ammonium persulfate. And reducing the silver ions in the hydrogel to obtain the silver nanoparticles uniformly dispersed in the hydrogel. And the detection sensitivity of the protein is greatly improved by using the silver nanoparticles as the enhanced substrate. A Raman spectrum probe and an electrode modified by protein molecular imprinting hydrogel are combined to form an optical sensor capable of rapidly detecting and identifying protein; the prepared protein molecularly imprinted hydrogel modified electrode can be simultaneously used for an optical sensor and an electrochemical sensor of surface enhanced Raman spectroscopy, so that the detection efficiency and reliability are greatly improved, and the application prospect is good.
Owner:TIANJIN POLYTECHNIC UNIV

Method for manufacturing glass fiber net cover by using environment-friendly phenolic resin

The invention provides a manufacturing method for manufacturing a glass fiber net cover by using environment-friendly phenolic resin. The environment-friendly phenolic resin is prepared from the following raw materials in percentage by mass: 38-48% of phenol; 43-57% of a formaldehyde aqueous solution; 1-10% of water; and 1-7% of a basic catalyst. The preparation method comprises the following steps of: mixing the phenol and formaldehyde aqueous solution in the corresponding percentages by mass, and stirring an obtained mixture for 5-20 minutes at 20-40 DEG C; adding the water and the basic catalyst in the corresponding percentages by mass, heating an obtained mixture to 70-90 DEG C to react for 60-140 minutes; and keeping temperature at 70-90 DEG C, adjusting viscosity to be 60-140 cp.s, performing cooling and discharging so as to obtain the environment-friendly phenolic resin. The environment-friendly phenolic resin is compounded into dipping glue for manufacturing the net cover. Thepreparation method of the environment-friendly phenolic resin is mild in condition and free of pollution. The environment-friendly phenolic resin can be used for producing the net cover without beingdiluted, curing temperature and time are reduced, the volatilization of organic matters is reduced, and production cost is reduced.
Owner:绵阳中研磨具有限责任公司

Space reference calibration method and device for optical satellite pointing measurement system

The embodiment of the invention provides a space reference calibration method and device for an optical satellite pointing measurement system. The method comprises steps of resampling an absolute output quantity of an absolute pointing measurement subsystem through a relative output quantity of a relative pointing measurement subsystem to obtain a sampling frequency normalization pointing parameter so as to obtain an internal space reference conversion time sequence parameter of the absolute pointing measurement subsystem; acquiring a space reference conversion time sequence parameter betweenthe absolute pointing measurement subsystem and the relative pointing measurement subsystem according to any space reference absolute pointing parameter sequence parameter and the relative output quantity; and constructing a space-time reference conversion model according to the absolute pointing internal space reference conversion time sequence parameter and the space reference conversion time sequence parameter between the absolute pointing measurement subsystem and the relative pointing measurement subsystem so as to perform space reference calibration of the pointing measurement system. The embodiment of the invention lays a foundation for high-efficiency and high-quality imaging and subsequent on-orbit application of a high-resolution optical satellite.
Owner:BEIHANG UNIV +3

Recyclable double-layer steel sleeve for static load test of cast-in-situ bored pile and method

The invention relates to a recyclable double-layer steel sleeve for a static load test of a cast-in-situ bored pile and a method. Rubber waterstops are arranged at the top ends and the bottom ends of double sleeves, and sealing materials are arranged in the upper sections and the lower sections of the double sleeves to serve as temporary fillers. Four special-shaped lifting lugs are welded to the inner sleeve bodies and the outer sleeve bodies at the top ends of the double sleeves. An auxiliary steel lifting lug is mounted at the downward 2/3 positions of the tops of the double sleeves. The method comprises the following steps that (1), the recyclable double-sleeve structure is designed; (2), the recyclable double sleeves are assembled and combined; (3), the recyclable double sleeves are hoisted and mounted; and (4) the outer sleeve is disassembled and recycled after the static load test is completed. The problem that slurry and concrete enter the pipe wall of a traditional double-sleeve pipe due to the fact that the top of the traditional double-sleeve pipe is open and the problem that the double-sleeve pipe is fixed to an orifice of a cast-in-situ bored pile after being mounted are solved, and the outer sleeve pipe can be recycled after the test is completed.
Owner:SHANGHAI FOUND ENG GRP

Soil flux measuring equipment and system capable of automatically switching light and shade breathing chambers

The invention provides soil flux measuring equipment and system capable of automatically switching light and shade breathing chambers, and relates to the technical field of soil measuring equipment. Comprising a bearing frame, a light intensity sensor, a glass plate arranged on the bearing frame, a film used for adjusting transparency, a transom window and a side window used for ventilation and a pushing electric pole used for pushing the transom window and the side window. And films for adjusting transparency are arranged on the outer walls of the glass plates on the side windows and the top window. The power supply supplies power to the upper computer, the serial port controller is connected with the upper computer, the soil temperature sensor, the soil humidity sensor and the air temperature sensor are connected with the soil temperature sensor, the light intensity sensor and the film controller are connected with the serial port controller, and the serial port controller is connected with the electric push rod. The problem of variability of small-scale spatial soil respiration can be solved, and control of influence of biological elements on dynamic change of soil respiration on different time scales is enhanced; and various data of the soil can be effectively detected.
Owner:北京天衡智联科技有限公司
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