Search results

Microstructured biomaterials such as mollusk shells receive much attention at present, due to the promise that advanced materials can be designed and synthesized with biomimetic techniques that take advantage of self-assembly and aqueous, ambient processing conditions.
For example, the abalone shell is about 3,000 times more fracture resistant than a single crystal of the material of which the shell is made-calcium carbonate [1].
The well-organised multifunctional structures, systems and biogenic materials found in nature have attracted the interest of scientists working in many disciplines.
Ham: The Journal of Experimental Biology 205 (2002) , p.2017 [5] T.
Sarikaya: Materials Science and Engineering C 11 (2000 ), p.145 [6] M.Sarikaya, I.A.Aksay: Biopolymers, 1, 1-25 (1992).

Viscoelastic material layer of it is G4 rubber and mild steel bars is Q235.
The SLVD has no tear and creak phenomenon of the viscoelastic material in a large displacement case, and can recovery the initial position.
Steel parts are simulated by BEAM188 element, and the quality of gusset plate auxiliary and connections is considered by adjusting the density of the material.
Application of viscoelastic damper to control vibration response of transmission tower under wind[J].Journal of Huazhong University of Science and Technology:Urban Science Edition,2003,20(2):69-71
Study of structural control using viscoelastic material[C].

Several materials have been used to adsorb metals, including, active carbon [9], hydroxyapatite [10], clay [11] and biomass [12].
Materials and Methods Sludge Humification.
These results give more motivation to go for all what is natural rather than using chemical materials for water pollution treatment.
Ezzeddine et al, Divalent heavy metals adsorption onto different types of EDTA-modified mesoporous materials: effectiveness and complexation rate, Microporous and Mesoporous Materials. 212 (2015) 125-136
Sharma, Chemically activated carbon fromlignocellulosic wastes for heavy metal wastewater remediation: effect of activation conditions, Journal of Colloid and Interface Science. (2017) [10] S.

The numerical simulation of the temperature operation mode for a gravity dam made from the compacted concrete (2006) Construction materials, the equipment, technologies of the XXI century, 10, pp. 30-32
Creep, shrinkage, and cracking of restrained concrete at early age (2001) ACI Materials Journal, 98(4), pp. 323-331
Handbook of Thermal Analysis of Construction Materials (2002) USA, William Andrew Inc., 467 p
Advanced Assessment of Cracking due to Heat of Hydration and Internal Restraint (2008) ACI Materials Journal, 105, July-August, pp. 325-333
Merge Concreting and Crack Control Analysis of Mass-concrete Base Slab of Nuclear Power Plant (2011) Applied Mechanics and Materials, 94-96, pp. 2107-2110

Muhamad1 1Institute of High Voltage and High Current, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia 2School of Science and Technology, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Malaysia.
Introduction Polymer nanocomposites have gained great interest among researches in electrical insulating application as it hold high performances as engineering materials.
While the microfillers are equal or less than 50 wt% of the total material weight of the polymer composite.
Summary Nanocomposite materials have shown some interest in high voltage research field toward the improvement of the insulation materials.
Piah: Malaysian Polymer Journal, 6, 1(2011) 58 [3] T.

Zhang: Journal of Materials Science, Vol. 37 (2002) NO.18, p. 3935-3943
Li: Materials Science Forum, Vol.532-533 (2006), p. 584-587
Ding: Key Engineering Materials, Vol.315-316 (2006), p. 15-19
Chen: Transactions of Materials and Head Treatment, Vol.27 (2006) No.1, p. 116-119(In Chinese)
Wang: Transactions of Materials and Head Treatment, Vol.Supp(2007), p. 41-45(In Chinese).

Rheology of Nanometric Powders Mufit Akinc 1 , and Chuanping Li2 1 Department of Materials Science and Engineering, 2220 Hoover Hall, Iowa State University, Ames, Iowa 50011, U.S.A. 2Northborough Research & Development Center, Saint-Gobain High-Performance Materials 9 Goddard Road, Northborough, MA 01532 makinc@iastate.edu, chuanping.li@saint-gobain.com Keywords: Rheology, alumina, fructose, viscosity, nano powders Abstract.
This research was supported in part by the Office of Basic Energy Science, Materials Science Division.
Prasad, Journal of American Chemical Society 125 (2003) 7860-7865
Skorokhod, Journal of American Ceramic Society 86 (2003) 299-304
Miller, Journal of Colloid and Interface Science 184 (1996) 594-600

Introduction With science and technology development, great concrete structure using in a variety of harsh environments is increasing such as cross-sea Bridge, tunnel, offshore oil platform, toxic and hazardous waste disposal and treatment engineering [1].
Raw materials and test methods Raw materials P·Ⅰ52.5 Cement, Shandong Shanshui card, specific surface area is 370m2/kg, 3d compressive strength is 38.4 MPa, 28d compressive strength is 54.9MPa.I grade fly ash, produced by Shandong Weifang power plant, density is 2.2 g/cm3, fineness is 2.2 g/cm3, water demand ratio is 96%.S95 ground slag, density is 2.8 g/cm3, specific surface area is 368 m2/kg.Medium sand, produced by Jimo, fineness modulus is 2.9, mud content is 10%.Polycarboxylates high-performance water-reducing agent, water reducing rate is 32%.5-10mm gravel, limestone, particle size distribution is good, water absorption is 0.65%,mud content is 0.3%.10-20mm gravel, limestone, particle size distribution is good, crushing value is 11.8%, apparent density is 2700 kg/ m3 , packing density is 1470kg/ m3, water absorption is 0.49%.
Analysis shows that unburned material in carbon go up surface when the concrete workability is poor.
Adopting cementitious system compatibility material and good quality admixture, mixture ratio optimization can achieve good job of high performance concrete.
Journal of Qingdao Institute of architecture and Engineering, 1996(1):25-31.

The finite element model of the crossbeam has the same structure and material as the combined three-section crossbeam, but the bolted joints are ignorable.
Acknowledgements This work was supported by National Science and Technology Major Project of China Grant No. 2009ZX04014-033 and National Natural Science Foundation of China Grant No. 50905004.
Huang: Journal of Vibration and Shock, Vol. 27 (2008) No. 8, pp. 125-129 (in Chinese)
Zhang: Journal of Vibration and Shock, Vol. 25 (2006) No. 3, pp. 190-192 (in Chinese)
Su: Mechanical Science and Technology for Aerospace Engineering, Vol. 28 (2009) No. 4, pp. 450-454 (in Chinese).

The retaining plate material is assumed to be linear elastic.
Xi'an University of Architecture Technology University（Natural Science）, 2007, 39（5）: 661-666.In Chinese
China Journal of Highway, 2008, 21(6): 20-25.
Chongqing Construction University Journal, 2008, 30（6）:90-95.
Simulation of excavation in an elastic-plastic material and analysis method.Geomech, 1992, 16(1):123-134