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855results about How to "Accurate weighing" patented technology

Preparation and application of two-component self-compacting concrete for slab ballastless track

The invention relates to a preparation and an application of two-component self-compacting concrete for a slab ballastless track. The preparation of the two-component self-compacting concrete is characterized in that the two-component self-compacting concrete is formed by mixing a dry mixture with a liquid in the ratio of 1:(0.05-0.15), wherein the dry mixture is formed by mixing components in parts by mass as follows: 100 parts of a bonding component, 0-30 parts of an inert mineral additive, 150-400 parts of fine aggregate, 150-300 parts of coarse aggregate, 0-2.0 parts of a water reducing agent, 5-20 parts of an expansion component, 0-10 parts of a viscosity regulating component, 0-0.5 parts of fiber and the like; and the liquid is formed by mixing components in parts by mass as follows: 100 parts of water, 0-4.0 parts of the water reducing agent, 0-3 parts of the viscosity regulating component and the like. According to the preparation and the application of the two-component self-compacting concrete for the slab ballastless track, the sensibility of the self-compacting concrete can be reduced, loss of the self-compacting concrete is reduced, and environment-friendly construction is realized. The two-component self-compacting concrete is applicable to the slab ballastless track of a high speed railway and is also applicable to the field of bridges, civil buildings, repair and strengthening and the like.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI

Text feature quantification method based on comentropy, text feature quantification device based on comentropy, text classification method and text classification device

The invention discloses a text feature quantification method based on comentropy, a text feature quantification device based on comentropy, a text classification method and a text classification device. The text feature quantification method comprises the following steps that: the weight of each feature word in a document is calculated according to the word frequency of feature words in a text document and the comentropy distributed on different text classes; meanwhile, the inter-class distribution entropy of the feature words is calculated in different modes according to the unbalance performance of the scale of each class of a text set; in addition, the inverse document frequency is introduced as required according to the distribution features of each feature word in the text set; local word frequency factors are properly reduced, so that the weight distribution of each feature word in the document is reasonable; and the feature differences of different classes of texts are sufficiently reflected by generated document feature vectors. The text feature quantification device and the text classification device disclosed by the invention have a plurality of options or parameters; and the optimum text classification effect can be achieved through regulation. The text feature quantification method has the advantages that the text classification accuracy is improved, and the performance on different text sets is stable.
Owner:CENT SOUTH UNIV

Stabilizer and vibration/noise dampening device that attaches to an archery bow

The contents of stabilizers for archery bows in the past have been a non-removable material that is permanently sealed inside the stabilizer housing unit by the manufacturer. Most stabilizers are made from tubular aluminum or other lightweight materials. The inside contents of the tubular stabilizers vary, such as fluid, granular steel, granular rubber, lead or solid elastomer, none of which can be moved around, altered or removed or added to by the archer. A unique feature of this device is that the housing of the stabilizer can be easily opened and re-closed securely by the archer, enabling the archer to remove, replace, adjust, change, add to or subtract from the contents, in order to get the exact desired weight, balance and / or vibration and sound dampening effect. An additional unique feature of this design is that the contents can consist of weighted material inside removable soft elastomer modular units of various sizes and / or mass weights. The weighted material can be made of steel or lead shot, ball bearings, weight rods, capsules filled with fluid, or fluid plus weighted pellets, or any combination of these weighted materials. Any or all of these can be suspended and / or sealed or molded inside the soft elastomer modules. This weighted material and / or fluid suspended in the elastomer absorbs vibration and sound, and the vibration and sound then is dissipated and absorbed further by the elastomer, then by the stabilizer housing itself. The archer can use different sized and / or weighted sections or internal modules, packets, that fit and / or stack snugly inside the housing of the stabilizer. The archer can change them easily, at will, to get the desired weight, balance and / or amount of vibration and sound dampening. The size and weight of these removable internal vibration dampening modules are only limited by the inside volume of the hollow chamber of the stabilizer housing that attaches to the bow. Another unique feature of this design is that two or more stabilizer housing of the same or varying sizes and shapes can be joined together, with or without an O-ring compressed between the stabilizer housings, to make one longer modular stabilizer with adjustable internal variable weight components. Also, a system of offset brackets and / or V-bars can be used to secure one or more of these stabilizer units in a position not normally available because of the limitations and configuration of a particular archery bow handle / riser.
Owner:PELLERITE BERNARD M

Apparatus and method for displaying numeric values corresponding to the volume of segments of an irregularly shaped item

An apparatus and method for displaying the weight or cost of segments of an irregularly shaped item involves passing a sensor bar supported above a supporting surface over the item lying on the surface. A compact hand-held embodiment of the sensor bar enables the operator to move the sensor bar in various linear or non-linear motions over the item surface as the sensor bar moves laterally across the item surface while the sensor bar support posts remain in constant contact with the supporting surface. The sensor bar contains one or more sensors which generate signals corresponding to the height of the item as the sensor bar traverses the item. At the same time, a displacement detector arrangement generates signals corresponding to displacement of the sensor bar relative to the support surface. These signals are processed in a signal processor to determine the volume of an uncut segment of the item lying behind the sensor bar at successive positions. Each of these cumulative volume determinations may be continuously converted into numeric weight values based on the density factor for the particular type of item, whereby numeric weight and cost values (based on weight) are continuously displayed as the sensor bar is stroked over the item, thus enabling the operator to accommodate an on-looking consumer's specific requests as per the particular portion desired based on the physical appearance, weight, and cost of an item before the item is cut.
Owner:WARGON KENNETH

Liquid-injecting method of battery and liquid-injecting production line thereof

The invention discloses a liquid-injecting method of a battery and a liquid-injecting production line thereof. The method comprises the following steps of: a) putting an electric core which is not injected with liquid on a front weighing device to weigh, and memorizing the weight value of the electric core which is not injected with the liquid in a control module; b) putting the electric core which is not injected with the liquid in a tray, and putting the tray on the liquid-injecting production line; c) injecting the liquid to the eclectic core by the liquid-injecting device at the tray which is put with the electric core, and vacuuming the electric core by a vacuuming device; and d) putting the electric core which is injected with the liquid on a back weighing device to weigh, and memorizing the obtained weight value of the electric core which is injected with the liquid in the control module; and e) comparing the weight value of the electric core which is not injected with the liquid with the weight value of the electric core which is injected with the liquid by the control module, if the different value exceeds a set value, supplying the liquid to the electric core. Each of the trays is provided with the plurality of electric cores. The invention is provide with the control module for memorizing and comparing the weight value of the electric core before and after liquid injection, has exact weighing and high automation degree, and improves the work efficiency of the production line.
Owner:GEESUN AUTOMATION TECH

Full-automatic powder packaging system

The invention discloses a full-automatic powder packaging system. The full-automatic powder packaging system comprises a screw filling device (1), a lifting bag clamping and weighing device (2), an automatic bagging device (3), a clamping, transferring and conveying device (4), a bag sewing device (5), a finished product transfer device (6), a powder recycling device (7) and an electronic control device (8). The lifting bag clamping and weighing device comprises a weighing mechanism (24) and a duckbill bag clamping mechanism (25) which can ascend and descend synchronously. A discharging cylinder (13) is sleeved with the duckbill bag clamping mechanism. The duckbill bag clamping mechanism clamps a packaging bag and ascends before filling operation so that a movable material door (156) can be located at the bottom in the packaging bag, the duckbill bag clamping mechanism gradually descends synchronous with ascending of the material level in the filling operation process, and the weighting mechanism conducts weighing at the same time. By the adoption of the full-automatic powder packaging system, powder materials can be weighed precisely, packaging bags are sealed and conveyed, and the full-automatic powder packaging system is especially suitable for premise metering and automatic packaging of extremely fine powder materials.
Owner:SAIMO ELECTRIC
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