Search results

Table 3 Specification of Standard Blocks � � � � � Materials and Manufacturing Methods We carefully select materials to produce hardness blocks that are suitable for hardness tests for which the blocks are used, and that give uniform hardness measurements.
We use a flat material to avoid the influence of central segregation.
Materials are machined into different shapes of block, which then undergo carefully controlled heat treatment processes until their microstructure is stabilized, attaining the required level of hardness.
As a matter of course, metrological accuracy should be complemented with material uncertainties.
Heat Treatment, p.27 (2003) [10] Journal of Material Testing Research Association of Japan Vol. 31, No.4 "Thirty Years of Material Testing Research Association of Japan" (1986) [11] Journal of Material Testing Research Association of Japan Vol. 36, No.4 "Celebrating the 35 Years of Material Testing Research Association of Japan" (1991)

This task can be implemented by use of new constructional materials with special properties or improvement of conventional materials.
Among great number of materials for concrete dispersed reinforcement, not all the materials are studied well enough and potential of many materials is not revealed yet.
One of such materials is carbon fibers.
Tarasova, Perspektivnyy metod modifitsirovannykh tsementnykh betonov, Concrete Technologies Journal. 5–6 (2011) 12-13
Kudyakov, Tekhnologiya i sostav uglerodofibrobetona s povyshennoy odnorodnost'yu prochnostnykh pokazateley, Materials Science Issues Journal. 1 (2016) 66-72

Journal of Xianyang Teachers’ School. 2000,15(3):40-43.
Institute of Meteorological Science, 17-22.
Journal of Agricultural Engineering, 2003,19(1)67-71.
Journal of Shihezi University, (Natural Science).2008.5(1)62-68.
Bulletin of Agricultural Science of China. 2004,20(6)331-333.

(1) Considering the interface of materials with different acoustic properties (e.g. air and the sample membrane) the energy of incident acoustic wave coming from the sound source is split into reflected part and transmitted parts.
Acknowledgement Authors acknowledge the institutional support for nonspecific university research and the Czech Science Foundation project GA 16-11965S.
Olivieri, Measurement of Normal Incidence Transmission Loss and Other Acoustical Properties of Materials Placed in a Standing Wave Tube, Brüel & Kjær Technical Review No. 1, ISSN: 0007–2621
Sakai, Electrically controlled elasticity utilizing piezoelectric coupling, Journal of Applied Physics 87 (2) (2000) 863–868, doi:10.1063/1.371954
Mokrý, Sound reflection in an acoustic impedance tube terminated with a loudspeaker shunted by a negative impedance converter, Smart Materials and Structures, Volume 21, Issue 11 (November 2012), ISSN: 0964-1726

Adding other supporting materials can reduce the adverse effects in the curing process.
PFA and cinder acting as curing auxiliary materials, they mixed with cement together can be a new type of firming agent, which is effective in curing sludge of municipal wastewater plant [9].
PFA is similar pozzolanic materials, with inorganic ion-exchange properties and adsorption decolorization, it can absorb pollutants in sludge.
Materials and methods Materials.
Coulombe: Canadian Journal of Soil Science.

Materials and Methods Compression and flexural tests were conducted to evaluate the mechanical behavior of adobe reinforced with sheep wool and corn husk, local materials from the district of Chavín de Huántar (Huari, Áncash – Peru).
Journal of Agricultural Engineering, vol. 54, no. 2, 2023.
Construction and Building Materials, vol. 431, art. 136469, 2024.
Case Studies in Construction Materials, vol. 21, 2024.
Sustainable Materials and Technologies, vol. 39, 2024.

Therefore, it is necessary to find a helpful way to deal with all those problems, which is not only helpful to organize and display teaching materials, but also conducive to enhance the utilization of educational resources center.
At present, China’s national Learning Resource standards have classified educational resources into its eight categories, including namely, media materials, rubric collection, teaching and learning tools, courseware, case collection, literature materials, curriculum and directory categories.
Compatible with network environment, easy to share and exchange, clear and visual interface, fast-running system, easy to operate, making abstract things materialized, integrating network resources with subject teaching rapidly, convenient access to shared materials, and time-saving for seeking proper materials.
D.: Concept mapping: A useful tool for science education in Journal of Research in Science Teaching, Vol. 27,Issue 10, p. 937-949(1990) [4] Information on http://www.campus-technology.com/article.asp?

Study of Si/Al Ratio and Modification of Silicon Morphology in ZA27 Alloys Xiaoping Luo 1, a, Lan-Ting Xia 1,b and Minggang Zhang 1,c 1 School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, PR China a lxpsyx@tom.com, bxlting@126.com, cAdv.Mater." am_lab@yeah.net Keywords: ZA27 alloys, Si phase, Modification Abstract.
Introduction Zn-Al alloys are the focus of much attention in the materials field because of their excellent mechanical properties, casting performance, wear resistance, low cost and promising application in many areas.
Zinc-aluminum alloys are promising alternatives to copper for use as wear-resistant materials such as bearings, sleeves and turbines[1-5].
Experimental Materials and Equipment.
Cai:Materials Journal,VOL.5(1994 ),p.30( In Chinese).

Introduction Energy is the material foundation to promoting the development of human society.
Buried tube heat exchanger: High density PE pipe, the production process after crude oil extraction, production, transportation, oil distillation, raw materials cracking, butane removal, ethylene polymerization such complex process.
Refer to the literature [4] and [7~11] data, and concludes that the energy and materials to produce energy consumption and emissions data, see table2 shows.
China Environmental Science，2005，25（5）:632～635 [9] YUAN Bao-rong.
Modern Chemical Industry，2006，26（4）:59～61 [10] Yang Jianxin，The method and usage of life cycle assessment of product，Beijing, meteorological publisher，2002:117 [11] CHEN Hong, Life cycle assessment of several typical macromolecular materials, ACTASCIENTIAE CIRCUMSTANTIAE, 2004，Vol.24,No.3:545~549

Introduction For the construction industry, it is important to examine the quality of concrete materials after they are casted in place.
To collect experimental data, the researchers collaborated with a local construction material testing lab.
Guetteche: Application of the Combined Method for Evaluating the Compressive Strength of Concrete on Site, Open Journal of Civil Engineering, Vol. 2 (2012), p. 16-21
Pucinotti: Reinforced concrete structure: non destructive in situ strength assessment of concrete, Construction and Building Materials, Vol. 75 (2015), p. 331-341
Sarıdemir: Prediction of compressive strength of concrete containing fly ash using artificial neural networks and fuzzy logic, Computational Materials Science, Vol. 41 (2008), p.305-311.