Search results

Patent documents contain not only explicit but also implicit fine-grained information, apart from coarse-grained structure information.
Physical structure templates are used to obtain media structure content, i.e., figures, titles of figures, and number tokens in figures.
Choice of the concrete domain ontology is based on patent class numbers, i.e., international class numbers and category class numbers, which are obtained in previous structure analysis module.
Take a Chinese patent document named "elevator operation plate" (application number: 200820002091) as an example.
For example, application number is "200820002091"; abstract is "The utility model disclosed one kind of elevator operation plate

This method of machining has a number of advantages, but it also has certain disadvantages.
Fe as a binder has the effect of inhibiting WC grain growth due to its high affinity for carbon during sintering, which promotes increased hardness of the material.
However, as the number of cuts increases when machining carbides through progressive EDM technology with a wire tool electrode, the overall efficiency decreases.
However, on the other hand, it should be emphasized that with the increasing number of cuts, the achieved quality of the machined surface in terms of roughness parameters Ra and Rz improves only to a minimal extent.
Żrodowski, Effects of a New Type of Grinding Wheel with Multi-Granular Abrasive Grains on Surface Topography Properties after Grinding of Inconel 625, Materials 16 (2023) 716

A large number of scholars have found that the bending strength and cracking resistance of concrete can be improved after adding suitable fibers.
They are often developed very quickly from templated solutions, using coarse-grained authoring tools, and by the efforts of a multi-disciplinary team.
The sisal fiber is natural fiber is one of the most widely used types accounted for half of the production the total number of fibers.
The somatic chromosome number of 135147 and 149 three, is five times, the hybrid sterility.
The crystallization of sisal fiber in bast fiber in the genus low; and high fiber strength, fiber is mainly due to the high number, and the number of high fiber splitting leads to difficulties, as shown in Figure 1.

The productive practice of endless strip production (ESP) showed that the longest number of continuous casting furnace reached to 15 heats (4500 tons), the longest rolling length in single casting period was 182 km, the qualified rate of products was up to 99.73%, the yield rate was up to 97.51% and the thin strip ratio had a maximum value of 40.57%.
In 2017, the average casting speed of ESP was over 5.5 m/min, the monthly average number of continuous casting furnace reached to 10.2, and the highest number was up to 12 with about 3640 tons [6].
But at present, the maximum number of continuous casting furnace was 15.
The product performance was very stable, the fluctuation of strength was below 10MPa and the fluctuation of elongation was lower than 1.5%, while the grain grade of ferrite was 12 and the area percentage of martensite was 30-35%.
The achievements of endless continuous casting process included that the average monthly number of continuous casting furnace reached to 10.2 in 2017 and now the longest number of continuous casting furnace reached to 15. 2.

Grain strengthening, solid solution strengthening and precipitation strengthening are the main three strengthening mechanisms for cast alloys and the contribution of precipitation strengthening to this kind alloy is uppermost.
For sand mold casting process, a continuous Gaussian nucleation distribution dn/d(ΔT), is used to describe the grain density evolution.
It can be seen that the number density of precipitates increases rapidly during the under aged stage until the number density reaches a maximum.
The following is the coarsening process and the dissolution of precipitates occurs, decreasing the number density to maintain the growth of other particles whose radius rp>r*.
In addition, from Fig.3(a), we can observe that the maximum number of precipitates under 1450C is much higher than that at 1600C.

The lamellar like structure was caused by transformation from equiaxed beta grains during cooling.
The grain size of prior beta increased with increasing sintering temperature and was over 50 μm for the compacts sintered above 1423 K.
In this work, the number of irradiation times was increased to 20 or 40.
To control the energy density, higher scanning velocity was employed as the number of repetition times increases.
The number of laser irradiation was varied from 1 to 20 and 40.

As it is possible to see in Figure 1, the number of new scientific publications that mention 3DCP technology has almost doubled annually from 2015 to the present.
A significant feature in this case can only be the lack of sufficient experience in operating printed objects in real conditions, which is necessary for the construction and verification of reliable calculation models for translating the number of exposure cycles into the real life.
When testing materials in the state of a dry mixture, moisture, the largest grain size of the aggregate, the content of the largest grains, and bulk density are determined. 3.
This trend is associated with the construction industry conservatism and extremely long innovation cycle due to the long service life of construction products and the large number of barriers in regulatory and technical regulation.
Considering high interest of the world scientific community in the topic of 3DCP, leading to the emergence of an increasing number of technological solutions in this area, it is very important to provide timely regulatory and technical support for the industrial development of 3Dprinting construction.

In this context, directionally solidified (DS) as well as single crystal (SX) nickel superalloys were developed for achieving an improved fatigue resistance and a significantly increased creep rupture strength by eliminating grain boundaries [1].
This has led to local stress and local strain approaches based on the Basquin equation and the Coffin Manson equation [4] and . ( 1 ) Thereby, the symbol Ni denotes the number of load cycles related to a suitable end-of-life criterion.
The relation ∆σ => Ni then forms a surface of equal number of cycles-to-failure.
Obviously, for the uniaxial load ∆σd in either of the characteristic directions both, the general multiaxial approach of Eq ( 3 ) and the uniaxial formulation ( 2 ) have to predict the same number of cycles-to-failure, i.e. , where ∆σd denotes the stress tensor components produced by ∆σd.
After iteration for the Hill parameters, the number of cycles-to-failure is determined by where the Hill function is defined according to Eq ( 4 ).

It has been documented that ECP can be used to improve the properties of the metallic materials, including refining grain size, improving chemistry homogeneity and eliminating defect.
Compare with the XRD spectra of hypoeutectic Fe-C alloys without ECP, the number of cementite peak decrease, the intensity of ferrite peak increase and generate graphite peak after ECP treatment.
This phenomenon can produce a large number of free carbon atoms.
And graphite nucleation near the dislocation pile-up doesn’t need the diffusion of substituted atom to vacate space and decrease the driving force of phase transformation of graphite, so the increasing number of dislocation pile-up which around cementite is benefit to graphite nucleation.
When the temperature below the eutectoid temperature, austenite area becomes carbon-depleted region because of large numbers of graphite formation.

It is generally acknowledged that the main stress brought by wire ropes bending-over-sheaves is tensile stress, bending stress and extrusion stress. 1) Tensile stress The tensile stress of wire rope can be calculated approximately is expressed as (1) Where is the axial load of rope, is the number of wires, is the diameter of wires and is the lay angle of the strand in rope. 2) Bending stress The researchers such as Ridge [8] from University of Reading have done research about the measuring and theoretical calculating of bending stress of wire ropes, the formula for calculating bending stress of wire is given by (2) Where is the initial radius of curvature, is the radius when on the sheave and is the elastic modulus of wires.
Formula for calculating extrusion stress of the contact point between wire and the groove is expressed as (5) Where , is the elastic modulus of groove, is the number of outer wires and is the curvature of contact point. 3.
The effective bearing area of the wire cross-section is reduced due to wear and deformation, and the local stress becomes larger, micro cracks appear on the grains of wire surface.
With the increase of number of bending, cracks continue to expand, the effective bearing area of wire cross-section is becoming smaller while the local stress is becoming larger, once the remaining wire cross section is no longer able to carry the load, the wire will break.
With increasing of number of bending, the damage will have a great influence on fatigue failure. 5.