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A Brief Account of BOM BOM is the short form of Bill of Material.
In its narrow sense, BOM means a physical composition of materials and simple classification of materials based on certain rules.
In short, BOM can be viewed as a list of all the parts of certain components and source materials, and at the same time, it also refers to the general data running through different departments and processes in an enterprise[3].
Journal of Computer Aided Design & Computer Graphics,2002, 14(1)
Journal of Northwest Normal University(Natural Science Edition),2002(2):38-40

Indentation Size Effect during Measuring the Hardness of Materials by Spherical Indenter Andrey A.
Oliver, Critical issues in making small-depth mechanical property measurements by nanoindentation with continuous stiffness measurement, Journal of Materials Research, 24(3) (2009) 653-666
Konstantinidis, On the interpretation of the indentation size effect (ISE) through gradient theory for Vickers and Berkovich indenters, Journal of the Mechanical Behavior of Materials, 25(5-6) (2017) 161-164
Presnyakov, The center of deformation in the processing of metals by pressure, Science, Alma – Ata, 1988
Diagnostics of materials, 6(81) (2015) 52-56

This paper deals with the difference of finite element analysis of results between distinguishing bone materials modeling and single bone material modeling.
The conclusion will be reached by analyzing and comparing the effects of the two materials assignment.
In other 4 cases, the stress and strain values of LISS plate in single bone material model was larger than in two bone materials model.
The plate in single bone material was stronger in torsion than in two bone materials.
[3] Zhang guodong, Liao weijing, Tao shengxiang, etc, Method of femur forming material properties in finite element analysis[J], Chinese journal of Tissue Engineering and Clinical Rehabilitation. 2009(43):8436-8441

Unlike conventional (sensible) materials, when the PCM reach the temperature at which they begin phase change (its melting point), they absorb large amounts of heat with little or no temperature change.
In present study, the core materials are encapsulated with membrane of synthetic material.
And the core materials are composed of several kinds of n-paraffin waxes (mainly nonadecane) and the membrane is a type of melamine resin.
Thermal Sciences.
Haruki, “Transient Heat Storage Characteristics on Horizontal Rectangular Enclosures Filled with Fluidity Slurry of Micro-encapsulated Phase-change-material Dispersed in Water,” Journal of Thermal Science and Technology.

Lin, Powers-Couche, et al., Microstructures of fire-damage concrete, ACI Materials Journal. 93 (1996) 199-205
Gambarova, Effect of high temperature on the residual compressive strength of high strength siliceous concretes, ACI Materials Journal. 95 (1998) 395-406
Samb, Pore structure of cemented tailings materials under natural or accidental thermal loads, Materials Characterization. 59 (2008) 598-605
Wu, Effect of ettringite structural transformation on expansive behavior of expansion cement, Journal of Inorganic Materials. 18 (2003) 137-142
Harmathy, Thermal properties of concrete at elevated temperature, ASTM Journal of Materials. 5 (2000) 47-74.

Using Calcium Carbide Slag as one of Calcium-containing Raw Materials to Produce Cement Clinker Yali Wanga, Shijie Dongb, Linlin Liuc and Suping Cuid School of Materials Science and Engineering, Beijing University of Technology ,Beijing,100124,China awangyali1978@bjut.edu.cn, bdongshijie_rain@emails.bjut.edu.cn, clllydcg@emails.bjut.edu.cn, dcuisuping@bjut.edu.cn, Keywords: Calcium carbide slag, Limestone, Calcium raw material.
The quality requirements of calcium materials constituent CaO MgO f—SiO2（flint or quartz） SO3 Na2O+K2O content（%） ≥48 ≤3 ≤4 ≤1 ≤0.6 Mineral composition The XRD patterns of the natural limestone are shown in Figure 1.
Compared with limestone materials, calcium carbide slag has a higher content of CaO, less loss on ignition, a lower alkali content, higher sulfur and chlorine contents.
There are large differences in decomposition temperatures between the two raw materials.
Xu, Application of carbide slag in pollution treatment [A], Journal of Shenyang Institute of Engineering(Natural Science). 6 (2010) 211-214,217.

Determination of Platinum and Palladium in the Presence of other Metals in the Mineral Raw Materials E.M.
These objects include the poor, fine-disseminated, arsenic ore, small deposits of ore, old tailings beneficiation and gold extracting factory, as well as a special type of mineral raw materials carbonaceous shales, which contain carbonaceous material and abundant halogens [3].
Palladium and platinum are most often found in copper-nickel sulfide ores, which are valuable polymetallic raw materials, as well as some golden sands.
After removal of interfering matrix effects of mineral raw materials, calibration to determine platinum is as follows.
Ustinova, Determination of platinum in mineral raw materials by switching chronoamperometry, IOP Conference Series: Earth and Environmental Science. 21 (1) 012031 (2014).

Fu, et al., Journal of Hazardous Materials, vol. 144(2007), p. 499
Qu, et al., Journal of Hazardous Materials, vol. 190( 2011), p. 869
Özer, et al., Journal of Hazardous Materials, vol. 152(2008), p. 778
Amini, et al., Journal of Hazardous Materials, vol. 154(2008), p. 694
Aksu, Journal of Hazardous Materials, vol. 154(2008), p. 731

Application of Intelligent Materials in Vibration Control for Strapdown Inertial Navigation System He Suna, Fan Lib and Jianhui Zhaoc School of Instrumentation Science and Opto-electronics Engineering, Beihang University Beijing 100191, China asunhe118@gmail.com, blifan@buaa.edu, czhaojianhui@buaa.edu.cn Keywords: Intelligent materials, SINS, Vibration control, PID, Fuzzy PID Abstract.
Therefore, researching on the vibration control based on intelligent materials is necessary and significant to the development of SINS.
Intelligent Structures and Materials Intelligent structures and materials refer to the bionic materials having one or more properties that can be significantly changed by external stimuli to meet the expectation of the intelligent function.
Wei: Journal of Chinese Inertial Technology Vol.17 (2009), p. 648 [2] C.L.
Zhao: Piezoelectric Ferroelectric Physics (Science Press, Beijing 2009)

Solid sealing materials, liquid sealing materials and three-phase foam are common sealing materials.
Solid materials are usually used in dense rock borehole, but they are not suitable for the fractured borehole.
Liquid materials are of strong infiltration capacity, but will produce splitting effect on fracture when injection pressure is high [1].
Moreover, curved or rough borehole is simulated when the steel wire is curved or covered with rough materials.
[7] Kaitai Fang: Uniform Design and Experimental table (Science Press, Beijing 1994).