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Yu [4] surveyed the advances in strength theory (such as yield criteria, failure criteria) of materials including metallic materials, rock, soil, concrete, ice, iron, polymers, and energetic material, under complex stress, and discussed the relationship among various criteria, and presented a method of choosing a reasonable failure criterion for applications in research and engineering.
Advances in strength theories for materials under complex stress state in the 20th century.
A new model and theory on yield and failure of materials under the complex stress state.
Mechanical behaviour of materials-VI, (ICM-6).
Journal of Hohai University, 18 (1990) 54-61.

On the other hand, such problems in Beijing-Tianjin-Hebei region as the imbalance of distribution in power and materials, maladjustment between the structure and quality of manpower and materials and the requirement of industrial structure adjustment and irrationality of development of manpower and material inevitably jeopardize driving force of this regional development.
The problem lying in the development of manpower and materials in Hebei province, which covers the largest area of the region, is the most serious.
In the regional cooperation, the development and utilization of Beijing-Tianjin manpower and materials have made some progress due to the regional advantage of being close to Beijing and Tianjin.
The primary task of Hebei at present, based on integration of talents development, is to make full use of the advantage in population and to throw in great number of manpower and materials especially in high-lever innovative talents.
Journal of Education and Work, Vol.15, No.4

Substrate material is oxygen free copper.
Gap is 2mm. 60mm 50mm 2mm Substrate Nozzle Molten metal Strip Nozzle Substrate Fig.1 Schematic illustrations of vertical melt drag experimental device Forming roll Table2 shows experimental materials of this study.
Both materials have not semisolid range.
Davey: Journal of Materials Processing Technology Vol. 192-192 (2007), p. 300-305 [2] S.
Motomura: Materials Science Forum Vol. 654-656 (2010), p. 421-426

Journal of Bridge Engineering 2004, 9(5): 454-463
Rigidity characteristics of multi-span suspension bridges, Journal of southwest jiaotong university 44(3):342-346.
Advanced Materials Research. 2011, (In press): 1082-1086
Journal of Fuzhou University (Natural Science Edition) 39(4): 568-574.
Journal of Hebei University of technology 37(2):97-102.

The non-linear buckling analysis takes into account the geometric and material nonlinearity.
Journal of Constructional Steel Research 2005; 61 (4): 553-565
Journal of Constructional Steel Research 2006; 62 (3): 262-270
Journal of Constructional Steel Research 2006; 62 (6): 544-553
Journal of Constructional Steel Research 2009; 65 (2): 249-259

References [1] Li W J andYuan W Zh: Journal of Mechanical Strength Vol.26( 2004), p.170 [2] Wang Yongquan, Chen Hualing and He Xueming: Journal of Xi’an Jiao Tong University Vol.40(2006), p.1305 [3] Dong J X: Micromachined Inertial Iinstruments-Microaccelerometer (Tsinghua University Press, China 2003) [4] Liu H W: Material Mechanics (Higher Education Press,China 2004) [5] Y Liu, Zh Y Wen and H Y Yang: Advanced Materials Research Vol.60-61(2009), p.135 [6] Y Liu, Zh Y Wen, Zh Q Wen, L Q Zhang and H Y Yang: Journal of Micromechanics and Microengineering Vol.1(2007), p.36 [7] Li W J, Song B F, Sun X Sh, et al: Structural Optimization and Design of Aircraft (National defense industry Press,China 2005) [8] Wang Y Y, T.I.
Polysilicon Film and Its Application in IC (Science Press,China 2001) [9] Wang J S, Wang Q and Sun Sh H: Journal of Chinese Inertial Technology Vol.11( 2003), p.29 [10] Zhong L, Liu J G and Zhao H Y: Electro-Mechanical Engineering Vol.20( 2005), p.4 [11] Xu J F and Zhang Zh J: Transducer and Microsystem Technologies Vol.28( 2009), p.33 [12] Y Liu, G Ch Wang and Ch W Guo: Engineering Vol.1( 2009), p.196 [13] Lei Y J: MATLAB Genetic Algorithm Toolbox and Its Application (Xidian University Press,China 2005)

Introduction Blending of existing polymers is an interesting route towards the development of new polymeric materials [1].
In recent years molecular modeling is gaining acceptance as a reliable technique to analyze the miscibility behavior of polymer materials [2]-[3].
The reactive processes of the polymer, Science Press, Beijing, 2008
Journal of Physical Chemistry B, Vol.38 (1998), p.7338
[7] Materials Studio 3.0, Accelys Inc., San Diego, CA, 2004

Our previous work with biopolymers used FTIR to determine the Na-alginate salts transformation to Ca-alginate (Kollár, Zsoldos, Szabó- UHMWPE modified sodium alginate, Materials Science Forum, 2015.).
These materials are intended for use in multi layer packaging films.
The selected materials are easily available biopolymers widely used in food and healthcare industry.
Acknowledgments This research was (partially) carried out in the framework of the Center of Applied Materials Science and Nano-Technology at the University of Miskolc.
Subha, Synthesis and Characterisation of Guar Gum-g-Poly(Acrylamidoglycolic acid) by Redox Initiator, Indian Journal of Advances in Chemical Science 1 (2012) 28-32.

The stainless steels have a good performance in a corrosive environment, and are used as the ball bearing materials.
Materials Young's modulus E [GPa] Poisson's ratio ν [-] Vickers hardness [HV] 13Cr-2Ni-2Mo 199 0.30 480 SUS440C 204 0.30 747 (b) Results of the observations of the contact groove.
Radcliffe, “A comparison of the performance of AISI52100 and AISI440C ball bearings in a corrosive environment”, Journal of Materials Science, Vol. 18, pp. 3611-3620, (1983)
Dommarco, “Rolling Contact Fatigue Resistance of Cryogenically Treated AISI 440C Steel”, Journal of Materials Engineering and Performance, Vol. 29, No. 4, pp. 2216-2226, (2020)
Kida, “Life and Flaking Failure of 13Cr-2Ni-2Mo and SUS 440C Stainless Steel Bearings in Water”, Key Engineering Materials, Vol. 904, pp. 131-136, (2021).

Investigation on perforation mechanism of medium density polyethylene F.Hosseinabadi1, S.M.Zebarjad2, M.Mazinani3 1,2,3 Department of Materials Science and Engineering, Engineering Faculty, Ferdowsi University of Mashhad, P.O.
There have been many investigations in the past few years with the main focus on the mechanical, thermal and morphological properties of different types of PE materials with regard to their different applications.
Experimental work Materials and Sample preparation.
Lazzeri, "Fracture behaviour of isostatic polypropylene under static loading condition", Materials and Design, 24, 2003, pp. 105-109
Lazzeri, "Effect of both uncoated and coated calcium carbonate on fracture toughness of HDPE/CaCO3 Nanocomposites", Journal of Applied Polymer Science, Vol. 104, 2007, pp. 3688–3694.