Search results

Qiu Instrument Science and Engineering Department, Southeast University, Nanjing, 210096, China Keywords: MEMS Gyroscope, DETF, Resonator, Frequency Shift, Frequency Modulation Abstract.
In the case, dω = rω , r m m QA x 2 ω = , (5) where r Q ξ = 2 1 is quality factor of the DETF driving mode. r r fπ=ω 2 ( fr is the natural frequency in DETF driving mode) is determined mainly by structural material properties and geometry parameter.
The natural frequency of a drive mode can be given by the expression [5] ( )b r m.mL WED f 37501 12 7 3 +       π = , (6) where D, L, W is, respectively, the thickness, length and width of the beam, E is the Young's modulus of the material of the device, m is the mass of perch attached to the center of the beam and mb is the mass of the tines.
Note that S is only dependent on material and geometrical parameters.
Howe: Journal of Microelectromechanical Systems, Vol. 11, 2002

High frequency C-V and G-V characterizations can only obtain the density of fast interface states in a narrow (about 0.5eV) energy window near the Fermi level due to the wide band gap of silicon carbide material (3.26eV for 4H-SiC).
Wright: IEEE Sensors Journal, Vol. 7 (2007) p. 1395 [3] H.
Wright: Materials Science in Semiconductor Processing, Vol. 9 (2006) p. 1133 [8] S.

As The influences of initial pH of solution, concentration of hydrogen peroxide and injection time of hydrogen peroxide to degrade organic materials have been investigated in the reaction system.
The ozone reactor was made of pyrex material with the capacity of 1000 ml and the connecting part was made of silicon tube so as to prevent from corrosion.
R. (2000) “Characterization of humic acid in the chemical oxidation technology (II) – characteristics by ozonation”, Analytical Science & Technology, 13(2), 241-249 [3] Santos E.
M. (1997) “Carboxylic acids : Formation and removal in full-scale plants”, Journal AWWA, 89(8), 88-97 [7] Nakamuro K., Ueno H., Kakao M., Sayato Y. (1990) “Formation of hydrogen peroxide by aqueous ozonation of humic acid and aromatic hydrocarbons”, Chemosphere, 20(5), 525-531 [8] Staeheiln J., Hoigne J. (1982) “Decomposition of ozone in water : rate of initiation by hydroxide ion and hydrogen peroxide”, Environ.

It covers different digester designs and materials used for construction, important operating parameters such as ph, temperature, substrate, loading rate, applications of the biogas, the government policies concerning the use of household digesters, and the social and environmental effects of the digesters.
Health centre 20 11 220 10 2200 Agaanbadi 3 11 33 6 198 Temple 2 11 22 6 132 Street Light 50 11 550 12 6600 2 Fans In Homes 50 40 2000 10 20000 School 10 40 400 8 3200 TV Room 2 40 80 6 480 Health Centre 10 40 400 10 4000 Agaanbadi 2 40 80 6 480 3 Computer & Accessories School 2 300 600 2 1200 Health centre 2 300 600 4 2400 4 TV TV Room 2 60 120 4 480 5 Cooler Health centre 2 200 400 2 800 Total power required (PL) / connected load = 7298 W Total daily load required (PTL) / total watt hours required = 52,422 Whr/ day Type of load : 230 V AC 50 Hz single phase; PPV = [3] (PPV) = 11233.285 Watt or 12000 Watt or 12 kW Design of biogas plant Biogas is gaseous mixture of methane, carbon dioxide, hydrogen sulphids and several other gases, produced by anaerobic fermentation of organic material
Singh, “Optimal Design of a Cost Effective Solar Home power System - An Alternative Solution to DG for Grid deprived Rural India”, International Journal of Research and Reviews in Applied Sciences, Volume 2, Page(s): 1 – 7, January 2010

Anacleto2,b 1 Faculty, College of Engineering, Mindanao State University, Marawi City, 9700, Philippines 2 Faculty, Material Science Engineering Technology Department, MSU-IIT, Iligan City, Philippines aerlyape@yahoo.com, bnatzanacleto@hotmail.com Keywords: Carbothermic; Chromite; Reduction; isothermal.
Materials and Methods Two chromite samples, sandy chromite from Opol, Misamis Oriental (SCO) and lumpy chromite ores from Manticao, Misamis Oriental (LCM) were used in the study with activated carbon as reductant.
Journal of the Southern African Institute of Mining and Metallurgy 91 (1991) 397-409.

The material of diffuser is PMMA which refractive index=1.49, the refractive index of air=1.00,the critical angle (42.2°)of total reflection occured when light from diffuser into air can be calculated by the equation(1).Therefor, When light from the PMMA material diffuser which refractive index is into the air, when≧42.2°total reflection will be occared.
The diffuser is 960mm-long, 30mm-wide and 2mm-thick, which material isPMMA, The model is shown in Fig.2.
Acknowledgement This study was funded by the National Natural Science Foundation of China (No.51173015) and the Fundamental Research Funds for the Central Universities, ( No zz1011).
Journal of Applied Optics. 2011,32(4):613 [3] C.Y Liang.

Because pavement engineering is one of the major materials consumers in the construction industry [1], the design stage should be carried out aiming the use of alternative and renewable materials in order to meet the sustainable development concepts and to satisfy the extension process of national road network.
Materials and research methodology The study aims to identify the deficiencies of using RA mixtures on the properties of fresh and hardened state PCC and RCC.
RA mixture contamination with other types of materials is often inevitable when dealing with industrial production.
Taranu, Recycled aggregates and rigid pavement engineering, Journal of Applied Engineering Sciences, vol. 2(15), issue2_2012, (2012), 61-68
Florescu, Use of recycled materials in the construction of roller compacted concrete (RCC) pavements, Advanced Materials Research Vol. 649, Trans Tech Publications, Switzerland, doi: 10.4028/www.scientific.net/ AMR.649.262, (2013), 262-265

It is a business and organize activities, striving to reasonably use manpower, material resources and financial resources, in order to enhance the investment benefit and economic benefit.
Widespread use new materials, new technology, new method, etc. based on well done the demonstration of the main construction technical scheme.
References [1] Engelhardt, Gary V: Regional Science and Urban Economics,Vol.26(1996),p.313-336
[2] Levin, Laurence: Journal of Economic Organization and Ehavior, Vol.36(1998),p.59-83

The construction sequence is: the excavators carry the tones from raw material dump to construction area, and then throw the first filling equably in homework range with excavators.
Fig1 The relationship of blow count and Fig2 The relationship of blow count and depth of fifth point depth of eighth point Conclusion 1) Experiments proved that the determinated riprapping program according to the practical situation is successful. 2) The project adopts the riprapping method, the filling material composition in construction and construction method play a critical role in the riprapping effect.
In the filling material composition, the filling stone diameter should be limited in 500mm and the stone contains less clayey soil and construction waste as far as possible; in the construction method, we must use the riprapping method strictly and can not use the push filling method. 3) The riprapping method applies to the layer with small silt area and small thickness, but in the engineer practice it also used in the larger area and big thickness silt layer.
References [1] LI Ping, CHEN Li—qun.Application of Stone Fling Mud—Extracted in Soft Base Process [J].Journal of Xiangtan Normal University: Natural Science Edition, 2009, 31 (2) ：103—106. ( in Chinese) [2] ZHOU Sheng, ZHANG Wei, LI Ping.

Before numerical analysis, the material and load parameters should be determined.
Acknowledgements The authors wish to thank the SEPCO for providing valuable information, materials and pictures.
X:Post-disaster Collapse Cause Analysis and Test Appraisal for Certain Chimney, Journal of Xi’an University of Architecture & Technology(Natural Science Edition), Xi'an University of Architecture and Technology , China, Vol. 40, No. 5, 2008, pp. 642-646, in Chinese