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Introduction The way for nursing staffs to protect the safety of patients to the greatest extent and to reduce risks to the minimum ask for the sufficient use of science and technology.
Journal of Clinical Nursing, 2005, 4(8): 51
Journal of Nurses Training, 2011(05): 441
Chinese Journal of Nursing, 2010(08):743-744
Chinese Journal of Clinical Pharmacy, 2012(02):105-109.

Journal of Biomaterials Science, Polymer Edition. 2007;18:799-824
Journal of the mechanical behavior of biomedical materials. 2009;2:147-155
Journal of Biomaterials Science, Polymer Edition. 2007;18:799-824
Materials Science and Engineering: C. 2014;45:94-102
Journal of the mechanical behavior of biomedical materials. 2012;12:119-128

Journal of Materials Science: Materials in Electronics. 29 (2018) 14031–14045
Materials Science Forum. 1006 (2020) 259–266
Materials Science Forum. 1038 (2021) 168–174
Journal of Engineering Sciences. 10(1) (2023) C1-C8
Materials Science Forum. 1096 (2023) 73–9.

However, the real geological or environmental materials are relative impurity compared with Pb standard.
This technique can be applied not only to geological samples, but also to a wide range of environmental samples such as marine sediments, carbonates, organisms or polluted pollution-source materials with high sensitivity and accuracy.
The double spike method can be used applied to Pb isotopic analysis any kind of sample, such as marine sediments, carbonates, organisms or polluted pollution-source materials with high sensitivity and accuracy.
Oversby: Journal of Geophysical Research, Vol.74(1969), p. 4338 [6] J.
Beard: International Journal of Mass Spectrometry, Vol. 193(1999) , p.87

The use of composite materials is increasingly growing at a rapid pace.
A new method of forming holes in fibrous polymer composite materials is proposed.
(eds) Composite Materials: Applications in Engineering, Biomedicine and Food Science.
Determination of the parameters of forming holes in an uncured woven composite by piercing with a pointed indenter, Engineering Journal: Science and Innovations # 9, 2017 .-- 14
[4] Kablov E.N. 2012 Strategical Areas of Developing Materials and Their Processing Technologies for the Period up to 2030, Aviation Materials and Technologies Publisher: All-Russian Scientific Research Institute of Aviation Materials (Moscow) ISSN: 2071-9140 [5] Nelyub V.A. 2013 Technologies for preparing prepregs All materials.

Zhu et al. investigated the best ratio of the mixture-abrasive honing stones in deep hole honing of difficult-to-cut materials[6].
Malkin: Journal of Engineering for Industry Vol. 115 (1993), pp: 406-414
Xiao: Key Engineering Materials Vol. 416 (2009), pp: 461-466
Fisher: International Journal of Machining and Machinability of Materials Vol. 5 (2009), pp: 60-79
Zhao: Proceedings of the 2010 ASME International Manufacturing Science and Engineering Conference.

However in case of a heterogeneous material model, the identification procedure has to be able to quantify the aleatory uncertainties capturing the variability of the material properties.
This contribution concentrates on identification of aleatory uncertainties in the context of heterogeneous materials, their character causes spatial variations of mechanical parameters (such as elastic modulus, yield stress or tensile strength) affecting the structural system behaviour under the loading.
Acknowledgement This outcome was financially supported by the Czech Science Foundation, project No. 16-11473Y, and the Grant Agency of the Czech Technical University in Prague, grant No.
Marzouk, Bayesian inference with optimal maps, Journal of Computational Physics, 231 (2012) 7815-7850
Pregibon, Exchangeability and data analysis, Journal of the Royal Statistical Society.

Electrohydrodynamic routes are relatively new for processing advanced materials and in this paper we use electrospinning to prepare zirconia fibres diameter down to 200nm and hydroxyapatite (HA) fibres down to 1µm.
Experimental Details (1) Materials PEO (molecular weight 2,000,000): PEG (molecular weight 8000) (1:2 weight ratio) was dissolved in a water-THF (Sigma-Aldrich) solution (10:1 by volume) using magnetic stirring over 24 hours.
McNeuer, Journal of Materials Science, Vol 19(1984), p. 3224
Bonfield, Journal of Materials Science, Materials in Medicine, Vol 15(2004), , p. 441
Dzenis, Science Vol 304(2004), p. 1917 [10] W.Sigmund, J.

Numerical simulation of fracture propagation of heterogeneous material Zeqi Zhu1,2, a, Qian Sheng2,b and Xiaodong Fu2,c 1 Key Laboratory of Hydro-Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China 2 State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China azhuzeqi2005@tom.com, bQsheng@whrsm.ac.cn, c fxd_scu@163.com Keywords: digital image processing; heterogeneous material; fuzzy clustering; fracture process; numerical simulation Abstract.
Therefore, the images, as a kind of information resource, are able to reflect meso structures perfectly base on different gray scales and colors, and are used to study the interior structures and defects of materials during the DIP.
While the image attributes for different interior materials are not quite distinguished, the method of fuzzy cluster analysis was introduced into digital image processing in this paper.
Then, the softening model is applied in software FLAC3D to simulate the rock failure of brittle material such as granite in this paper, and the mechanical parameters for different materials in Three Gorges granite are seen in Reference[3].
Chinese Journal of Geotechnical Engineering 27, 956 (2005) [5] Kwan A K H, Mora C F, Chan H C.

Development and application of functional gradient materials.
Metallic Functional Materials, 2000,17(4):15~23 [4] LIN Wensong.
Development of preparation technology of functionally gradient materials.
Industrial applications of laser clad and laser deposited metal parts and graded materials.
Journal of Materials Processing Technology, 1998, 75(1-3): 165~172 [10] Romero JA, Griffith ML, Atwood CL, et al.